Development of a high-power THz radiation source for plasma diagnostics |
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| Affiliation: | 1. Department of Paediatrics and Child Health, Division of Pediatric Pulmonology, University of Cape Town, Red Cross War Memorial Children''s Hospital, Cape Town, South Africa;2. Department of Anatomical Pathology, University of Cape Town, Red Cross War Memorial Children''s Hospital, Cape Town, South Africa;3. School of Public Health and Family Medicine, Faculty of Health Sciences, University of Cape Town, South Africa;4. Department of Paediatrics and Child Health, Red Cross War Memorial Children''s Hospital and MRC Unit on Child & Adolescent Health, University of Cape Town, Cape Town, South Africa;1. University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Matice Hrvatske 15, 21000 Split, Croatia;2. University of Rijeka, Faculty of Engineering, Vukovarska 58, 51000 Rijeka, Croatia;3. University of Sheffield, Department of Civil and Structural Engineering, Sir Frederick Mappin Building, Mappin Street, Sheffield S1 3JD, UK;1. Department of Physics, Lovely Professional University, G.T. Road, Phagwara - 144411, Punjab, India;2. Department of Applied Sciences, DAV Institute of Engineering & Technology, Jalandhar, 144008, India |
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| Abstract: | A high power radiation source in the THz range with long pulse and narrow line width is required for diagnosing fusion type plasmas by collective Thomson scattering. Gyrotrons currently meet the requirements concerning power, pulse length and line width when operating in the 50–150 GHz range. They may have the potential also to do this in the THz range. In this paper two methods based on harmonic operation are investigated. Both look promising, if high conversion efficiency can be attained. This, however, still has to be demonstrated. |
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